FAIRMol

Z45614013

Pose ID 11344 Compound 3245 Pose 501

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T17
T. brucei TR (Doorstop site) T. brucei Doorstop site
Ligand Z45614013
PDB5S9T

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Weak SASA cached
Promising but geometrically suspicious
Binding strong Geometry low Native mixed SASA done
Strain ΔE
25.0 kcal/mol
Protein clashes
0
Internal clashes
7
Native overlap
contact recall 0.25, Jaccard 0.12, H-bond role recall 0.00
Burial
82%
Hydrophobic fit
65%
Reason: 7 internal clashes
7 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-1.080 kcal/mol/HA) ✓ Good fit quality (FQ -9.04) ✓ Strong H-bond network (7 bonds) ✓ Deep burial (82% SASA buried) ✓ Lipophilic contacts well-matched (65%) ✗ High strain energy (25.0 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (7)
Score
-21.602
kcal/mol
LE
-1.080
kcal/mol/HA
Fit Quality
-9.04
FQ (Leeson)
HAC
20
heavy atoms
MW
312
Da
LogP
1.13
cLogP
Strain ΔE
25.0 kcal/mol
SASA buried
82%
Lipo contact
65% BSA apolar/total
SASA unbound
502 Ų
Apolar buried
270 Ų

Interaction summary

HB 7 HY 10 PI 1 CLASH 0
Final rank3.169Score-21.602
Inter norm-1.129Intra norm0.048
Top1000noExcludedno
Contacts15H-bonds7
Artifact reasongeometry warning; 7 clashes; 3 protein clashes; moderate strain Δ 25.0
Residues
ALA284 ARG228 ARG287 GLY195 GLY196 GLY197 GLY286 ILE199 ILE226 ILE285 LEU227 MET333 PHE198 SER200 TYR221

Protein summary

1033 residues
Protein targetT17Atoms15160
Residues1033Chains2
Residue summaryVAL:1536; LEU:1387; LYS:1386; ILE:1064; GLU:900; THR:868; ARG:816; PHE:800; ALA:780; ASN:700; PRO:686; GLY:672; SER:616; TYR:588; ASP:528; MET:408

Receptor context

2 kept / 0 excluded
Receptor context filtering: interactions and SASA are computed against protein atoms plus allowed cofactors/ions. Native ligand-like HETATM partners are excluded from scoring.
Kept context 2 Excluded HETATM 0
Kept cofactors / ions
A:FAD501 B:FAD501

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name5S9TContacts12
PoseOpen native poseHB0
IFP residues
ALA365 ARG228 ARG331 GLY229 LEU332 LEU334 MET333 PHE198 PHE230 SER364 THR374 VAL366
Current overlap3Native recall0.25
Jaccard0.12RMSD-
HB strict0Strict recall0.00
HB same residue+role0HB role recall0.00
HB same residue0HB residue recall0.00

HB · H-bonds

Mode: strict. Count shows atom-level H-bonds; unique residues in summary: 0.

PI · π–π interactions

Native π–π recall is disabled because no explicit native π–π reference was stored.

HY · Hydrophobic contacts

CLASH · Clashes

No clash · clashes detected for this pose.

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
463 1.849767598748503 -1.26027 -22.944 9 14 0 0.00 0.00 - no Open
472 2.798095488823452 -1.286 -24.6828 11 15 0 0.00 0.00 - no Open
445 2.8871749129701585 -1.33197 -25.8246 5 14 0 0.00 0.00 - no Open
501 3.1689469733012934 -1.12908 -21.6016 7 15 3 0.25 0.00 - no Current
443 3.6986528364012434 -1.81516 -34.0355 8 21 0 0.00 0.00 - no Open

Molecular metrics

RDKit SASA burial, strain energy (MMFF94s), ligand efficiency and fit quality for this docking pose.
✓ Metrics available

Scoring & efficiency

Docking score -21.602kcal/mol
Ligand efficiency (LE) -1.0801kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -9.038
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 20HA

Physicochemical properties

Molecular weight 312.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.13
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 25.02kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -62.05kcal/mol
Minimised FF energy -87.07kcal/mol

SASA & burial

✓ computed
SASA (unbound) 501.8Ų
Total solvent-accessible surface area of free ligand
BSA total 412.9Ų
Buried surface area upon binding
BSA apolar 270.1Ų
Hydrophobic contacts buried
BSA polar 142.8Ų
Polar contacts buried
Fraction buried 82.3%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 65.4%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -6308.1Ų
SASA_nonpolar(complex) − SASA_nonpolar(receptor) − SASA_nonpolar(ligand free). Negative = non-polar surface buried upon binding. Requires full polarity-decomposed SASA computation.
Receptor non-polar SASA 8063.1Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 2083.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)